X-Git-Url: https://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fmbchar.m4;h=df351a6eb24ae2c53fb1d33dc8759188676c4bb6;hb=be4b03ff802ce76ee841d09d7546039d5e991127;hp=dd613cbc6937597fc3197e5e0d0788ab41f04346;hpb=fbf26a89d86387bcf6f801dcd4455e2751c3867e;p=gnulib.git

diff --git a/m4/mbchar.m4 b/m4/mbchar.m4
index dd613cbc6..df351a6eb 100644
--- a/m4/mbchar.m4
+++ b/m4/mbchar.m4
@@ -1,4 +1,4 @@
-# mbchar.m4 serial 1
+# mbchar.m4 serial 2
 dnl Copyright (C) 2005 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -10,5 +10,11 @@ dnl From Bruno Haible.
 AC_DEFUN([gl_MBCHAR],
 [
   AC_REQUIRE([AC_GNU_SOURCE])
-  :
+  dnl The following line is that so the user can test
+  dnl HAVE_WCHAR_H && HAVE_WCTYPE_H before #include "mbchar.h".
+  AC_CHECK_HEADERS_ONCE(wchar.h wctype.h)
+  dnl Compile mbchar.c only if HAVE_WCHAR_H && HAVE_WCTYPE_H.
+  if test $ac_cv_header_wchar_h = yes && test $ac_cv_header_wctype_h = yes; then
+    AC_LIBOBJ([mbchar])
+  fi
 ])